Beneficial Effect of Short-Term Supplementation of High Dose of Vitamin D3 in Hospitalized Patients With COVID-19: A Multicenter, Single-Blinded, Prospective Randomized Pilot Clinical Trial

1. Cervero, M.
2. López-Wolf, D.
3. Casado, G.
4. Novella-Mena, M.
5. Ryan-Murua, P.
6. Taboada-Martínez, M.L.
7. Rodríguez-Mora, S.
8. Vigón, L.
9. Coiras, M.
10. Torres, M.